THEORY OF 3JCNGUYEN MUSIC NOTATION

TONE AND SEMITONE:

Let's take a look more closely at the construction of our C Major Scale (7 notes: C D E F G A B). By adding in the black notes (5 notes), we can see that there are actually 12 notes (7 whites and 5 blacks) between one C and the next (C) = 1 octave. Distance between two consecutive notes is called Semitone:

C +C D +D E F +F G +G A +A B C.

Twelve notes (black & white) between C and C

Attention: In India there are Semi-semitone, then ++ or -- will be used to describe them: example: a++ = (a+)+ Notice how some notes of the C major scale have another note in between them (eg. from C to D there is a black note in between), whereas some don't (eg. from E to F or from B to C: semitones). The gap from C to D consists of two semitones, and is known as atone.The distance from one of these 12 to its neighbour is known as a semitone. This pattern of tones and semitones is how the scale gets its particular color. The major scale is formed out of the following mixture of tones and semitones :

tone, tone, semitone, tone, tone, tone, semitone 1 1 1/2 1 1 1 1/2

Caution: Our Octaves start from note C, not A. The reason for this is: You can see an Octave goes with the pattern of 5 black keys on Keyboard. It is easy for you to remember. Middle C (C4) is in the middle position of a keyboard or a piano. Higher octaves are on the right of C4. Lower Octaves are on the left of C4.When you see a note " 5a2 " = note "a" in octave C5, has duration of 2. " b1 " = note "b" in octave C4, has duration of 1.================================================================================================Acording to Scientific System, middle C is C4 because the first octave is starting at -1. In 3JCN system, the fisrt octave is starting at 1, therefore middle C becomes C6 (please visit http://www.3jcn.com for the newest 3JCN system)